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相关概念视频

X-ray Diffraction of Biological Samples01:10

X-ray Diffraction of Biological Samples

5.0K
X-ray diffraction or XRD is an analytical tool that utilizes X-rays to study ordered structures such as crystalline organic and inorganic samples, polycrystalline materials, proteins, carbohydrates, and drugs.
According to Bragg's law, when X-rays strike the sample positioned on a stage, the rays are  scattered by the electron clouds around the sample atoms. The  X-ray diffraction or scattering is caused by constructive interference of the X-ray waves that reflect off the internal...
5.0K

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相关实验视频

Updated: Mar 6, 2026

Synthesis of a Thiol Building Block for the Crystallization of a Semiconducting Gyroidal Metal-sulfur Framework
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准备和粉末X射线衍射研究的tecovirimat水合物固体形式.

Alexander Ivlev1, Dmitry Kolybalov1, Sergey Arkhipov1

  • 1Department of Synchrotron Research, SRF `SKIF', Nikol'skiy prospekt 1, Kol'tsovo, Novosibirskaya oblast, 630559, Russian Federation.

Acta crystallographica. Section C, Structural chemistry
|March 5, 2026
PubMed
概括

德科维里马特是一种针对正经病毒的抗病毒药物,具有三种水合形式. 研究人员确定了两种形式的晶体结构,并重新确定了第三种形式,进步了对这种重要药物的理解.

关键词:
在PXRD中,PXRD是PXRD.在X射线中,X射线的衍射效果是不同的.抗病毒化合物 抗病毒化合物晶体多态的多态化晶体结构 晶体结构德科维里马特 (tecovirimat) 是一个

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Author Spotlight: Accelerating Discovery in Microporous Material Chemistry
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X-Ray Crystallography to Study the Oligomeric State Transition of the Thermotoga maritima M42 Aminopeptidase TmPep1050
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相关实验视频

Last Updated: Mar 6, 2026

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科学领域:

  • 固态化学 固态化学
  • 晶体学 晶体学是指结晶学.
  • 制药科学 制药科学

背景情况:

  • 德科维里马特是一种关键的抗病毒药物,向的是骨病毒.
  • 德科维里马特的固态特性,特别是其水合形式,尚未完全理解.
  • 了解不同的固体形式对于药物配方和稳定性至关重要.

研究的目的:

  • 为了确定tecovirimat的水合形式的可再生结晶的实验条件.
  • 为了描述tecovirimat的固态景观.
  • 为了确定特定的tecovirimat水合物的单晶结构.

主要方法:

  • 在各种条件下进行了结晶实验.
  • 粉末X射线衍射 (PXRD) 用于通过瑞特维尔德精炼来确认相纯度.
  • 使用单晶X射线衍射来确定和重新确定晶体结构.

主要成果:

  • 实现了三种水合形式 (两个单水合物,I和III;一个半水合物,V) 的可复制结晶.
  • 首次确定了tecovirimat单水合物I和半水合物V的单晶结构.
  • 为了进行直接比较,Tecovirimat单水化合物III的晶体结构在293K时被重新确定.

结论:

  • 这项研究成功地特征了三种水合形式的tecovirimat,扩大了对其固态特性的了解.
  • 确定新型晶体结构为未来的固态研究和药物开发提供了基础.
  • 这些形式的一致表征对于可靠的制造和tecovirimat的治疗用途至关重要.